I just purchased a 328i E92 and of course it has every option except logic 7 and I'm wondering what is the best way to go bout upgrading it. I know nothing about car audio and am looking to spend around $1k

Since you are in Florida you might also want to get in touch with Technic
who lives in Fort Lauderdale I believe.(he is and East Coast expert and makes
the best stereo adapter harness for these he is also good at low cost recommendations)
You do not want to go to a common stereo shop with these or even good ones
that don't understand them.

But won't and aftermarket amp toast those OEM's speakers
For the xd600/6

If you do the numbers and since the OEM's are 2 ohm you are delivering
probably 5 times the power of the existing amp into cheap speakers.
the math on this says you are about 100 watts rms on speakers that were running on maybe 20 rms for the under seats and around 15 rms for the door if even that.

But won't and aftermarket amp toast those OEM's speakers
For the xd600/6

If you do the numbers and since the OEM's are 2 ohm you are delivering
probably 5 times the power of the existing amp into cheap speakers.
the math on this says you are about 100 watts rms on speakers that were running on maybe 20 rms for the under seats and around 15 rms for the door if even that.

I wouldn't have suggested unless I had tested it
I was powering my oem HIFI subs with about 120w rms for awhile
Obviously then gain wasn't cranked up
But they were fine

BSW kit $510
JL Audio XD600/6 $370
Technics harness $75 ( I think)
Total 955
Add some wiring for power for amp, and some rcas etc
And you are around your $1000 budget

Gee, kmarei, remind me to get you something for Christmas.

OP, we have full plug-and-play bolt-on upgrades that replace your front components, your underseat woofers, add an amp, and you don't have to cut a single wire in your car, and it all integrates with the stock wiring and head unit Shoot us an email off of our website and we will send you lots and lots of info on what we offer. Our Level One kits are in the price range you've stated.